Skip to content


    Exciting News for WebMD Members!

    We've been busy behind the scenes building new message boards for you. You'll have new and easier ways to find messages, connect with others, and share your stories.

    And, this will all be available on your smartphone or other mobile device!

    What Do You Need to Do?

    The message board you're used to will be closing in the coming weeks. While many of your boards will be making the move to our new home, your posts will not. Want to keep a discussion going? Save posts you want to continue (this includes your member profile story), so that you can re-post them in the new message boards.

    Keep an eye here and on your email inbox, we'll be back in touch soon to give you all the information you need!

    Yours in health,
    WebMD Message Boards Management

    Includes Expert Content
    faulty urine test?
    An_254863 posted:
    I am in a substance abuse program at my local hospital. I was given a urine test and tested positive for marijuana with 120ng and then a week later i was tested again and was negative. This obviously concerned my counselors so they went ahead and gave me another test today another week after the negative test. It was positve. I am now being accused of altering my urine somehow with a drink that would clear my system. I did no such thing. Is there anything else that would cause this? any specific foods or other beverages?
    Betty Ford Center
    Harry L Haroutunian, MD responded:
    Certain drugs are stored in the body fat. For some period of time - two to four weeks after the last usage - these drugs may show up in varying quantities in the urine. In my experience, it has not been uncommon to see a steadily declining drug level mixed with an occasional negative specimen.

    The important thing is: are the values of the positive test continuing to decrease? You may want to call the laboratory that they use to test and have this confirmed by their chief chemist.

    Good luck.

    Featuring Experts from Betty Ford Center

    Harry L. Haroutunian, MD., is an internationally known speaker on the topics of Addictive Disease and its treatment. He is Board Certified in Family M...More

    Helpful Tips

    How Family Member Can Deter Addiction In Adolescents
    Families are the people who know teens the best. It is important that teens know that their families will always provide them with ... More
    Was this Helpful?
    1 of 1 found this helpful

    Related Drug Reviews

    • Drug Name User Reviews

    Report Problems With Your Medications to the FDA

    FDAYou are encouraged to report negative side effects of prescription drugs to the FDA. Visit the FDA MedWatch website or call 1-800-FDA-1088.